[http://www.scilab.org/images/scilab_logo_small.gif]


'''[http://www.scilab.org%|%Scilab]''' is a free program for [Numerical Analysis in Tcl%|%numerical computation].  It is used for numerical computations in engineering, statistics and for plotting graphs and such.

It has connection to [Tcl] via these functions:

   ScilabEval:   Tcl instruction: Evaluate a string with scilab interpreter 
   TK_EvalFile (obsolete, replaced by TCL_EvalFile):   Reads and evaluate a tcl/tk file 
   TK_EvalStr (obsolete, replaced by TCL_EvalStr):   Evaluate a string whithin the tcl/tk interpreter 
   TK_GetVar (obsolete, replaced by TCL_GetVar):   Get a tcl/tk variable value 
   TK_SetVar (obsolete, replaced by TCL_SetVar):   Set a tcl/tk variable value 
   close:   close a figure 
   figure:   create a figure 
   findobj:   find an object with specified property 
   gcf:   gets the current active tksci figure 
   uicontrol:   create a Graphic User Interface object 
   uimenu:   Create a menu or a submenu in a figure

Scilab's help system is implemented using Tk.

----

GS 2012-06-11: Here is a simple example for using Tcl-Tk with Scilab. There is no tclsh or wish in Scilab. 
Scilab evals commands with the [http://help.scilab.org/docs/current/en_US/ScilabEval.html%|%ScilabEval] function.

[http://gersoo.free.fr/wiki/f1036/sciguidist.jpg]

There are 3 files (run.sce, distance.sci, gui.tcl).

The Scilab function [http://help.scilab.org/docs/5.5.0/en_US/TCL_EvalFile.html%|%TCL_EvalFile] is used to display the [GUI], which calls 
a Scilab function to recompute the distance (function distance()) 
each time sliders are moved.

To make a test, put these 3 files in the same directory,
run Scilab and change the working directory:

======none
cd <your Scilab directory>
======

Enter the command:

======none
exec ('run.sce')
======

and the GUI will display.

The file run.sce:

======none
// run.sce
exec distance.sci;
TCL_EvalFile('gui.tcl');
======

the file distance.sci:

======none
// distance.sci
function dist = distance(x,y,z)
  dist = sqrt(x*x + y*y + z*z)
endfunction
======

And the Tcl-Tk code:

======
# gui.tcl
global x y z dist

set x 10
set y 10
set z 10
set dist { }

toplevel .w
scale .w.scx -from 0 -to 200 -length 200 -resolution 1 -label X \
             -orient horiz -bd 1 -showvalue true -variable x \
             -command ComputeDistance
scale .w.scy -from 0 -to 200 -length 200 -resolution 1 -label Y \
             -orient horiz -bd 1 -showvalue true -variable y \
             -command ComputeDistance
scale .w.scz -from 0 -to 200 -length 200 -resolution 1 -label Z \
             -orient horiz -bd 1 -showvalue true -variable z \
             -command ComputeDistance

label .w.lt -text Distance
label .w.ldist -textvariable dist -bg lightblue
eval pack [winfo children .w]

proc ComputeDistance w {
    global x y z dist
    ScilabEval "dist = distance($x,$y,$z);TK_SetVar('dist',string(dist));"
}
======

-----

'''[http://sourceforge.net/projects/scipad/%|%Scipad%|%Scipad]''' is a powerful editor and graphical debugger for programs written in the Scilab language. It is a mature and highly configurable editor, almost entirely written in Tcl/Tk.

[http://a.fsdn.com/con/app/proj/scipad/screenshots/debugger_demo_1.png]

[http://a.fsdn.com/con/app/proj/scipad/screenshots/Dual_view.png]



** See Also **

   [Numerical Analysis in Tcl%|%numerical computation]:   

<<categories>> Mathematics | Application | Graphics